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Key to CollomiaView taxon page for Collomia
(For a list of species in Collomia, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1. Perennial herb from underground rhizomes 2. Plant generally cespitose  Having a densely clumped, tufted, matted, or cushion-like growth form. ; stem < 5 cm, internodes  Segment of an axis (generally a stem) between successive positions (nodes) from which one or more structures (especially leaves, buds, branches, or flowers) arise. congested; leaf  Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). blade  Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped. < 2 cm, lobed; corolla light to deep purple ..... C. larsenii 2' Plant erect  Upright; vertically oriented. ; stem > 10 cm, internodes spaced; leaf blade generally 3–8 cm, coarsely toothed; corolla red-orange ..... C. rawsoniana 3. Stem generally erect, simple  Composed of a single part; undivided; unbranched. , middle internodes short-white-nonglandular-hairy; flowers in heads terminal, occasionally on axillary  Pertaining to or within an axil, especially a leaf axil. stems 4. Corolla yellow to orange, fading white, 15–30 mm (< 5 mm in cleistogamous flowers); at least 1 anther exserted  Protruding out of surrounding structure(s) (e.g., stamens exserted from corolla). ; pollen generally blue ..... C. grandiflora 4' Corolla white to pink, <= 15 mm; anthers included  Not protruding out of surrounding structure(s) (e.g., stamens included in corolla). ; pollen generally white ..... C. linearis 3' Stem generally spreading  Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal. , branches spreading to ascending  Curving or angling upward from base, or about 30-60 degrees less than vertical or away from axis of attachment. , internodes long-translucent-glandular-hairy; flowers 1 or in clusters axillary and terminal 5. Lower cauline leaves elliptic  In the shape of a flattened circle or ellipse; wider than linear , 3-toothed or 1–2 pinnate-lobed 6. Lower cauline leaves 3-toothed, upper entire  Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.). ; corolla tube purple, throat yellow, lobes  1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth. violet-pink ..... C. diversifolia 6' Lower cauline leaves 1–2 pinnate-lobed, upper lobed to entire; corolla tube yellow to light pink, throat yellow to white, lobes light pink to white ..... C. heterophylla 5' Lower cauline leaves linear  Elongate, with nearly parallel sides; narrower than elliptic or oblong. to lanceolate  Narrowly elongate, widest in the basal half, often tapered to an acute tip. , entire 7' Flowers 2–3(5), corolla 8–22 mm; pollen generally blue
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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .
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